LM386 LOW VOLTAGE AUDIO POWER AMPLIFIER

LOW VOLTAGE AUDIO POWER AMPLIFIER   DESCRIPTION  The UTC LM386 is a power amplifier, designed for use in low voltage consumer applications. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pin 1 and pin 8 will increase the gain to any … Read more

Power inverter oscillator.

Power inverter oscillator. What is an oscillator used for?Oscillators convert direct current (DC) from a power supply to an alternating current (AC) signal. They are widely used in many electronic devices ranging from simplest clock generators to digital instruments (like calculators) and complex computers and peripherals What is Oscillator and its types?An oscillator is a … Read more

Stereo plus bridge drive amplifier circuit

Stereo plus bridge drive Description  The STA540 is a 4-channel, class-AB audio amplifier designed for high quality sound applications. The amplifiers have single-ended outputs with integrated short-circuit protection, thermal protection and diagnostic functions. The best audio performance is obtained with the configuration where each speaker has its own DC blocking capacitor Suggested applications:  2x 9 … Read more

TV FAULT, SYMPTOMS AND SOLUTION

LOCATING THE FAULT STAGE FROM FAULT SYMPTOMS Defects can occur in the receiver due to failure of some components such as an IC, transistor, resistance, condenser or picture tube etc due to loose or broken wires, loose or dry joints or some defect in PCB. The main job in troubleshooting is to locate the faulty … Read more

Equalizer circuit Diagram | 5 Band

Transistors Graphic equalizer circuit This equalizer circuit can be adjusted the frequency to 5 channel is 60 Hz, 100 Hz, 1 kHz, 3 kHz, and 12 kHz. And, this project consists of stereos, right and left channel. It is the same. So, we will learn only the right channel (Mono). In-circuit is Mono. If you … Read more

Converter of 12 voltage to 5 voltage

Voltage Regulator (7805 IC) It is the component that is responsible for providing a steady DC voltage to an Electronic load. 7805 IC a member of 78XX series of fixed linear voltage regulator, the XX in 78XX indicates the output voltage it provides.7805 IC provides +5 volts regulated power supply with provisions to add heat … Read more

TDA2040 amplifier circuit diagram

Two-way hi-fi system with active crossover  Components for the amplifier Capacitors 35v – Electrolytic Capacitor Resistors 1/4 Watts 5% SemiconductorsIC1 TDA2040 ConnectorsIN Audio inputVCC Power supplyOUT Audio output MiscellaneousPower supply, heat-sink to the IC, solder, Box, Speakers 35 watts 8 Ohms and 15W 8 Ohms